Power-driven valve grinder



G.'F. VESTER.

POWER DRIVEN VALVE GRINDER. APPLICATION FILED APR.'19,1921.

1,41 1,140. Patented Mar. 28, 1922.

3 SHEETSSHEET l.

710M 6f vefier INVENTOR wayw- I A'TTORNEY WITNESSES G. F. VESTER.

POWER. DRIVEN-VALVE GRINDER.

APPLICATION FILED APR. 19, 1921.

1 ,41 1 1 40. Patented Mar. 28,- 1922 a SHEETS-SHEETZ.

G. F. VESTER. POWER DRIVEN VALVE GRINDER.

APPLICATION men APR. 19, 1 92|.

1,41 1, 140, Patnted Mar. 28, 1922.

3 SHEETS-SHEET s.

WITNESSES UNITED s rA'TEs g Apnlicationfiledfl pril19;"

To all' w ho'm it 71141 4]: concern :1

I Be it known that I, GEORGE aw citizen ofthe :UnitedStates, residing at :t-.

terbein, in the county'of Benton and State I of Indiana; have invented new and useful Improvements in! Power-Driven Yalve Grinders, of vhich the followingisaspeci-r ficationj'z- -r 1 a i The generali object of-my presentinvem tion is: the provisioiitof an efficient and. durable; power driven organized mechanism, de-u Y signed more especially as a valve grinder and characterized by a capacity to be con-, veniently positioned upon various. parts of a motor or the like that is to be operated on, To the attainment fof the foregoing, the in-rt vention' consists in the improvement as hereinaft'erdescribed and definitely claimed;

In the accompanying drawings forming part hereof:'- 1.1 H I F gure l is a sideelevation oi the apparatiis constitiitingthe best practical embodii the plane indicated by the line 5+5 of Figmento'f m'y'invention that I have as yet detus showing clutch. Y

corresponding vised-Q V v V Figure 2 isaplan 'vieW of the same." I 'Figure 3"is" a'view of a completeappara V some of the'elements-in section and some in side elevatio'n. f we Figure 4 is View showing some parts in planjand some in side elevation. I H Figure isa transverse section'taken'bin Among 'other elements my' nove1 app'aratus comprises a threadednipple 1, designed to bej'connectedwith the tubular easing of flexible shafting or any otherfiexible dri'vv I 'and provided with a portion-3*fof angular,-

ingconnection compatible with th'e-pur' 'ao se of my invention. *The said nipple'l' is integral with ahead 2 on whichi'is' marginal flange 3. Extendingthroughth'e nippleil form incro'ss section is aspindle a. Said spindle is adapted to beconnected with said sha-fting," Arranged Within the casing hereinaiter clescribed f an(l pinned"at ar .or; otherwisefixed on the spin'dle i is a clutch 'PAQTENTV'QOF li igui es 4 and '5.

1921. Serial 1%. 4 2,589.

FICEQ "lSpecificationhf ietters latent., 7

member having acircular flange 7. iit'S V ls a longitudinal shaft therear end ofwhich is spaced from the forward end j of the: spin- 1 dleh as'best shown in Figure 4. Pinned or 7 otherwise fixed on the rear end portion of the said shaft 8 are oppositely directed arms 9 which are located in the same transverse.

plane as the flange Tofthe clutch member 6-,

l lingedlyconnected at 10 portions of the 'armsQ are the end portions of reversely arranged arcu' 1 ate elutchj shoes 11, having at their inner side to the outer end and atdiametricall'yopposite points: aper tur'ed lugs-l2. -Pivotally connected to the" sa'idjlugs 12' are"socket members 13 with threaded bores l L Thread'ed int the said i bores Mare links 1 5 th -inner ends of whichare fpivotally connected at'-16 to bifurcated v said collar '17 being loose on the shaft '8 and-beingcircumfer' entially grooved-as indicated by" 18% Sui? Y lugs on a collar 17 rounding: the shaft 8 and'interposed between an'abutm'ent 18 thereof and the collar- 17 is powerful pressing of the shoes 1]. against the inner sideof the flange '7 on the clutch an expansion spring 19- the function "oiwhich is 'to yieldingly-force the collar 1 rearwardly and thereby bring aboutfthe niember 6,"andthe"turningjthe rotation of, theshaft 8 with the spindle 4:." The casing designated by 20 is,inthe preferred embodiment of the inV'ention, equipped with a de- V tachably connected closure plate 21; and'piv-' .90 i otally connected "at 22 to a lug on theinner'. si'de'oftheiplate' 21 an arm 23 havingat its inner end a fork- 245' that is arranged in L the circumferential" groove 18 of the coll at 171 and straddles the said collar so as to portion of which is detachably connected,

preferably i-n'thread'ed manner, to a handle transmit rectangular movement to the collar"? :witho'ut tending to interfere with the 'rota tion of the collar about its axis. I J ournaled in the closure plate 2lis a shaft 25 the outer 26. -On the inne'r porti'on of the shaft 25 ,is

an arm 27 ivitlfa lateral; pi'n 2 8ifiand inter- I posed bet'ween the said pin 28and the arm 23" is a link 29.- The forward portion ofthe'.

said link 29 is curved asindicated by 30 and l best shown in Figures 6 and 7 so as to reach I around the shaft From this it follows that when'the handle 26 is turned clockwise to disengage the cl'iitchshoes '11 froin the flange 7 ofthe clutch'member .6, thecrank 27' is enabled to carry'the pi'n 28 beyond the dead center With the result that the shaft 8 is held indisconnected relation to the clutch 26 is 'turned inreverse 'di-" dead center is broken,v the spring l9iby expanding will press and "hold 4 the shoes-l1 in frictional contact with the inner sideof the flange 7 of the clutch mem-' her 6.

Fixed in the forward I the casing 20, the rear end of which is closed the said shaft in the :transverse i man 52. At its .52 is pivotally connected to the rear portion f therefromj by the head 1, is a bearing member on 5 which are spaced standards 41 and in which is a transverse bore 42.

A The standards. 41. receive the shaft 8, and, fixed withrespect t0 -8 and interposed between the standards41l is a worm screw member 40 is a transverse shaft 44, and fixed with respect to the said'gshaft 44, is a worm gear 45 that is intermeshed with the that the bearing member'40'is provided with.

webs 46, and that the bearing member 40 is fixed in and with respect to the casing-20 bythe bolting of the said webs 46 to the 1 casingQO, as

within the cas1ng20 and fixed on the opposite en'd of the shaft 44, with reference to indicated by 47 Disposed the worm gear45, is acrank' disk 50 having a'wrist pin 51 to which is connected. a pit-- forward end the said pitman of a reciprocatory rack'bar53, movable rectilinearly in 1 the forward reduced portion 20f of the casing 20. 'Thesaid rack bar 53 is'of 'T-form in cross section and is disposed and movable ina' similarly shaped longitudinal guide 54 which guide 54 is appropriat ely fixed in thecasingportion 20" and serves to preclude-lateral deflection of the'rackbar-53 inany direction. Inter- 'meshed with the rack bar 53 is a spur gear V 63 that is pinned to a shaft 64, journaled in hearing members 55 and 56, carried by the casing portion 20.

hit 66 on the lower portion of which is an appropriate grinding member 67. At this point I would have it distinctly understood that it is withinthepurview of my invention to remove the bit 66 and replace it with a bit bearing any kind work-ingfpart of appliance that it is desiredto rotate through the medium of my novel organized mecha-i shaft 64 .and the lower end of a screw 80 that bears in the upper end of the'bearing 56 and is capable of adjustmentand is 1, wwi hiscr ws enlarged portion of 43. Disposed bore j 42 of the bearing From this it follows that incident to reciprocation of the rack bar I 53, the spur gear 63 and the be oscillatedjabout their axes." Pinned or otherwise connected to the shaft 64 is a pend 'ent collar 65, and socketed in the said 001- lar 65;and secured by a set screw 65* is a shaft 64 will loc'k nut8l.ff At82 is ahandle through c [the medium of which downward pressure is 1 exerted on: the workingelement 67 when the apparatus is in operation. The said handlea sleeve 83,' equipped 8.4:. Which; extend into a circum- '82 is "provided with ferential groove 85 in the bearing 56:so' as to prevent accidental'displacementofhthe c Any appropr ate motor suchaasanelec tric motoror an-internal combustion motors said'handleL may-I be employed to drive the flexible shaft: hereinbeforereferred, to as connected to the nipplelp 3 ,7

The casing 20"and its reduced portion;20j

are constructed as: nearly. lgrease :proof as vIncident to the practical operation of ithe .possible in order that :all eofft-he working said- 7 worm screw-43 so as to derive rotary motion; At this point it will be observed.

machine the crank disk 50 serves-,the addi-' f tional purpose of a counterbalance, designed.

to render even the reciprocation of the rack bar 53.

that through the medium iof my novel.ap-. paratus a workman can with facility grind the rear or back valveofa Ford automobile It will be apparent from the foregoing motor or the valves of the V.-shaped motors r such as are found. inhigh power automobiles. I It will also'be'apparent that through the medium of my novelorganized mechanism an operator can apply avalve grind 'ingelementor any other working element to various parts of a motor that areto be w operatedon. V P I have entered into a detail description of the construction and relativearrange.-

ment of parts embraced,inthejpresent and preferred embodiment of my invention in p order to impart a full, clear and exact un- V.

derstanding of the said embodimentQ-Ll do not desire, however, to be understood ascon V fining myself to .thesaid sp ecific construction, and relative arrangement ofparts inasmuch as invthefuture practice {of the invention various changesgand modifications .may be made such as fall with n the scopef of my invention as defined in myappended claims.

Having describedliny inventiomwhat'f I claim and desires to secure by Patent, is

Letters-;

1. An organized mechanism-for actuating a tool or appliance; comprising a casing having a reduced forward portion, a bearing member fixed in the comparatively large portion of theicasingl and having a transverse bore, a nippledisposedat the rear end of the casing andhaving a flanged head to close said end, aspindleifixed to'the said s 130 nipple and carrying within the casing a" female clutch member, a shaft journaled in the bearing member of the casing and alined with and spaced from said spindle, arms fixed on the rear portion of said shaft, arcuating clutch shoes hingedly connected to said arms and opposed to the inner side of the female clutch member collar, a collar movable rectilinearly on the'shaft, connections interposed between said collar and said shoes, a spring surrounding the shaft and interposed between the collar and an abutment on the shaft in front of the collar,

an arm pivoted to the casing and engaging the collar for the retraction of the collar against the action of the spring, a shaft journaled in the casing and having a handle exteriorly of the casingand also having within the casing a crank arm and a lateral pin thereon, a link pivoted to the collar moving arm and having a forward portion shaped to reach around. said shaft and pivotally connected to the pin on the crank arm, a worm screw fixed to the longitudinal shaft, a transverse shaft journaled in the bearing member of the casing, a worm gear fixed to said transverse shaft and intermeshed with the worm screw, a combined crank disk and counterbalance fixed on the transverse shaft and arranged within the casing, a reciprocatory rack bar guided and held against lateral deflection in the forward reduced portion of the casing, a pitman connecting said disk and rack bar and movable in the casing, a shaft journaled in the casing and disposed at right angles to the rack barand having a spur gear intermeshed with the said bar and adapted at one end and exteriorly of the casing portion to be connected with a tool or appliance, and a handle connected with the reduced casing portion andadapted to enable an operator to exert downward pressure on the casing. V

2. An organized mechanism for actuating a tool or appliance, comprising a casing having a reduced forward portion, a hearing member fixed in the comparatively large portion of the casing and having a transverse bore, a nipple disposed at the rear end of the casing and having a flanged head to close said end, a spindle fixed to the said nipple and carrying within the casing a female clutch member, a shaft journaled in the bearing member of the casing and alined with and spa-cedfrom said spindle, arms fixed on the rear portion of said shaft, arouating clutch shoes hingedly connected to movable rectilinearly on the shaft, connections interposed between said collar and'said shoes, a spring surrounding the shaft and interposed between the collar and an abutment on the'shaft in front of the collar, an

arm pivoted to the casing andengaging the collar for the retraction of the collar against the action of the spring, a shaft journaled in the casing and having a handle exteriorly of the, casing, and also having within the casing a crank arm and a lateral pin there on, a link pivoted to the collar moving arm 7 and having a forward portion shaped to reach around said shaft and pivotally connected to the pin onthe crank arm, a worm screw fixed to the longitudinal shaft, a transverse shaft journaled in the bearing member of the casing, a worm gear fixed to teriorly of the casing portion to be connectedwith a tool or appliance, and a handle connected with the reduced casing portion and adapted to enable an operator to exert downward pressure on the casing; the upper portion of the last named shaft terminating in a bearing member fixed to the reduced casing portion, an adjusting screw threaded in said bearing member, and an anti-friction ball interposed between the contiguous ends of the shaft and screw, and the handle being connected in swivelled manner with the said bearing member.

3. In an organized mechanism for actuating a tool or appliance, the combination of a casing, a nipple adapted to be connected with a source of power and having a head closing one end of the casing, a

female clutch member arranged in the cas-' ing adjacent to said head and fixed with respect to said nipple, a longitudinal shaft mounted in the casing and alined with and spaced from the nipple and also'spacedi from the female clutch member toward and from the longitudinal shaft, a spring pressed collar on the longitudinal shaft and connected with said shoes, a swinging arm to move the collar and connected with the casing, a shaft journaled in the casing and having a handle exteriorly of the same, a

crank on the said shaft within the casing and having a pin, and a link connected to the swinging arm and vhaving a curvilinear portion arranged to reach around the lastnamed shaftand pivotallyiconnected to the pin on the crank thereof at the opposite side of said shaft with reference to. the swinging collar moving arm.

Intestimony whereof I aflix my signature.

GEORGE F. VESTER. 

